Sink drain plug



FIG. 1 is a left side view of the present invention; and

FIG. 2 is a right side view of the present invention; and

FIG. 3 is a front view of the present invention; and

FIG. 4 is a rear view of the present invention; and

FIG. 5 is a top view of the present invention in its closed position; and

FIG. 6 is a top view of the present invention in its open position; and,

FIG. 7 is a perspective view of the present invention placed in an exemplary sink basin.

Wherein the dotted lines herein are illustrated for purpose of use and environment and form no part of the claimed invention and wherein the broken boundary line in FIG. 6 is shown for the purpose of illustrating the bounds of the claim and forms no part of the claimed design. 

CLAIM The ornamental design for the sink drain plug, as shown and described. 